Zoological Society. 491 



This species may be recognised by its peculiarity of colouring, the 

 upper portion of the whorls being nearly white, stained just here and 

 there with brown, the lower chestnut-brown speckled with white 

 dots. 



MiTRA PRoscissA. Mitv. testd oUongo-ovatd, utrinque attenuatd, 

 spirce anfractibus contiguis, suturis impressis ; transversim undique 

 liratis, liris latiusculis, ohtuso-convexis, confertis, interstitiis an^ 

 gustis, subtilissime cancellatis ; albidd, maculis aurantio-fusces- 

 centibus bifasciatim tinctd. 

 Conch. Icon., Mitra, pi. 22. f. 177. 



Hab. ? 



It may be as well to caution the reader against confounding this 

 shell with the Mitra /erruginea, a name which I have seen erro- 

 neously attached to it in one or two important collections. 



Mitra rotundilirata. Mitr. testd oblongo-ovatd, utrinque atte- 

 nuatd, transversim undique liratd, liris rotundis, confertis, inter- 

 stitiis angustis, striis elevatis decussatis ; aurantio-castaned ; colu' 

 melld quadriplicatd. 



Conch. Icon., Mitra, pi. 23. f. 178. 



Hab. ? 



The ridges of this shell are peculiarly rounded, and impart a kind 

 of crimped appearance to the lip. 



Mitra Ruppellii. Mitr. testd fusiformi-ovatd, basim versus leviter 

 contractd, transversim undique liratd, liris subrotundis, interstitiis 

 Icsvibus ; castaneo -fused ; columelld quadriplicatd. 

 Conch. Icon., Mitra, pi. 23. f. 179. 

 Hab. Red Sea; Riippell. 



An interesting species, in which the ridges are almost as rounded 

 as in the former ; they are however wider apart, and the interstices 

 are not crossed with raised striae. 



Mitra ticaonica. Mitr. testd ovatd, crassd, solidd, spird brevi, 

 suturis profundis ; anfractibus transversim undique exiliter sulcatis, 

 juxta suturas Iceviusculis ; spadiceo-brunned, aperturce fauce vividh 

 purpureo-fuscd ; columelld quadriplicatd. 

 Conch. Icon., Mitra, pi. 23. f. 181. 



Hab. Island of Ticao, Philippines (found on the reefs at low water) ; 

 Cuming. 



A very characteristic stout solid species, with a dark purple-brown 

 richly- enamelled mouth. 



Mitra planilirata. Mitr. testd oblongo-ovatd, spird svbacumi- 

 natd, transversim undique sulcatd, liris intermediis peculiariter 

 planulatis ; fused ; columelld quadriplicatd. 

 Conch. Icon., Mitra, pi. 23. f. 184. 



Hab. ? 



This species may be easily distinguished from those which it so 

 nearly resembles in general appearance by its peculiarly flattened 

 ridges. 



Mitra peregra. Mitr. testd oblongo-ovatd, spird subobtusd ; 



